The study aimed to investigate the relationships among psychological distresses, resourcefulness, sleep disturbances, anxiety and depressive symptoms in family members of intensive care unit (ICU) patients. A cross-sectional, descriptive correlational design was employed. Using structural equation modeling (SEM) approach, relationships among factors, mediators, and outcomes were analyzed. The SEM explained 59% of the variances in depressive symptoms and 36% in anxiety. Family members with greater learned resourcefulness had fewer sleep disturbances, depressive and anxiety symptoms. Nursing professionals need to detect psychiatric disease of family members and must be especially vigilant with people who have low resourcefulness and sleep disturbances.